Concrete-pavement-finishing machine



May 17, 1927.

- o. L. KIIPP CONCRETE PAVEMENT FINISHING MACHINE Original Filed April16, 1925 2. Sheets-Sheet 1 I I I T 1 .1

v 7 K Q 71115 flrromvsx May 17; 1927.

O. L. KIPP CONCRETE PAVEMENT FINISHING MACHINE Original Filed April1192.5

2 sheets-sh et 2 Patented May 17, 1927.

UNE'FEE? states r est 5:

0311s L. KIPP', on s'ri PAUL, MINNESOTA; i

corronn'rnrAvnrann'r r r irsHiiNe MACHINE.

Application filed April 16, 1323, Serial no. 632,188; Renewed April 4,1927.

This'invention relates to a road malting machine and particularlyto'sucli a machine adapted to operatiebncoricrete or cement roads. Inmaking concrete roads it has heretofore been the practice to vdepositvthe concrete on the roadbed foundation and then to level of the layer ofconcrete by screed .bars or boards which are moved over. the

surface of the concrete layer. This procedure takes considerable timeand labor and the resulting road surface is usually not uniform. I

It is an object of this invention to provide meansfor forming thesurface of the con crete layer and properly shaping the same comprisinga roller which is moved over the said surface. I I.

It is afurther ObjQCllof'the nvent on to provide a machine comprising aframe supported upon trucks adapted to movealong f P the road at the sde thereof, which Irame comprises members extending across the, 'roadand. forming 'aiding means for a roller which is reciprocated across theroad.

It is a further objectof the invention to provide said frame memberswhich extend across the road with means for guiding the roller in anon-rectilinear path whereby a tion with the accompanying-- crownedsurface may be given to the road;

it is still another object of the invention to provide such a machinehaving a-bar extending across the road vat the front thereof for roughlyshaping; the surface; which bar, preferably, is provided withreciprocatlng .nie'ans. I v I It is a still furtl'ier ob ect of theinvention v to provide a'machine having;- a frame adapt ed'to carryamotor together with means driven fromthe motor'for turningthe truckwheels to progress the macl'iine, for recipro eating the said roller andfor reciprocating the'screed bar atthe front of the machine These andother objects and advantages .of the invention will be fully set forthin the following description made in connecwhich like referencecharacters refer to the same parts throughout the different views;

and in which I I Fig. lis a planviewofthemachine;- Fig. 2 is a View n sde elevation of one en (1 of the machine I 1 Fig. 3 is aview in endelevation of one side of the machine; p

, Fig. lis a vertical section taken on the line 4-4 of Fig.1;-

drawings in 1,9". 5 'neof Fig. 2; v V

Fig; 6 1s a vertical section taken on the finch- 6 of Fig. 1". v

'Refer'rnig to the d'rawlngs', the machine comprises truck wheels 1which are disposed at each side of the road and which may travel ontrack members 2 provided therefor.

The'sa'id Wheels arespaced, longitudinally of the; road" and our'naledin frames or brackets 3 having flat flanges at the top thereof, saidbrackets having depentli bearing carrying arms between which the themachine and a roller 6 rests upon the top of each of said l lieagmswhich is carried on an axle 7 supported in bearnigss and 8.

is y a vertical section taken on the I p The bearing 8'has a flange eiitending down;

wardly and adapted to lie in flat. contact with a larger channel 9towhich it is se' cured by spaced boltsbrrivets 10: The bearing8 extendsdownwardly at't'heother side of the beam 5' and has a horiaon'tal flangedisposedunder and Ic'jonnected to the ,upper'fla'ng'e of the channel 9;Theflarge channel?) is thussupported from theIf'bea-ni 5 and there isone of the channels 9 extending transversely between the respectivevpairs of channels 4' at each end of the machine. The channels 9' havebolted to theoutsi'de thereof, adjacent the bearings 8 one of theflanges of the angle members 11 which e3:- tend upwardlv and have boltedto their other flanges clian'nel members l2w'hich elxtend across the topof I-b'e'am' 5 parallel to the channel members 4;. Other'angle members13have one of their flanges bolted to the outside of the channels 9above the bottom thereof and extended outwardly, and upwardly adjacentthe ends of the channel members 12 to which the horizontalflangesthereof are bolted or riveted The c'l annel members 12; in turn; haveeiitending therebetween andrest-ing' thereon channel memberszle, thelatter members being secured to the members 12 in' any suitable manner.

he channel inembers' 9 have secured to I the inside thereof adjacenttheir bottoms smaller channels adapted to form guideways for rollermembers 16 journaled on stub shafts secured in block members17 in thecentral portion of. which are journaled trunnions 18 of a comparativelylarger roller 19 which extends between the blocks 17. The machine issimilar in construction at each end and each side and a descriptionof'one of said ends and sides will be sufficient to understand thestructure. Only a portion of one end therefore is shown in Fig.3 andonly a portion of one side in Fig. 2, it being understood that thesestructures are duplicated at the other end and side of the machine,respectively. The blocks 17 have secured at each end thereof beyond therollers 16, the ends of a chain member 20, each end of which chainpasses from the block toward one end of the machine and passes over asprocket 21 secured to a shaft journaled in pairs of angle members 22extending across the top and downwardly beyond the channel members 4 towhich they are secured. Between the sprockets 21 the upper run of thechain passes under sprockets 23 carried on short shafts mounted inbearings 24 secured to a short section of channel 25, resting upon andsecured to the top of the channel member 9. Between the sprockets 23 thechain passes over a larger sprocket 26 secured to a shaft 27 which isjournaled in a bracket '28 secured to the member 25. It

will be understood that there is a member with its attached partssecured to each of the members 9 and the shaft 27 extends between themembers 9 and the members 25 secured thereto. Said shaft 27 has its endprojected beyond the front member 9 and has secured to said end a wormwheel gear 30 driven by a worm gear secured to a shaft 31 which is, inturn, driven by mechanism to be later described. It will be seen that.if the wheels 26 are driven the chain 20 will be pro greased and theblocks 17 and roller 19 moved in one direction or the other. The channelmember 15 is connected to the top web of the channel member 9 by acentral bolt 32 and bolts 33 at each side thereof, said bolts beingprovided with jamb nuts at each side of each web of the channels. Thecentral bolt 32 with the nuts thereon is adapted to draw the centralpartof the channel 15 upwardly, the end portions of said channel beingheld and forced down- 'wardly by the bolts 33 and the nuts thereonwhereby the channel is flexed and is given curved form with the centralportion thereof higher than the end portions.

7 The wheels 1 are equipped with sprocket wheels 34 over which runchains 35 also running over sprocket wheels 36 secured to the shafts 37carried in bearings 38bolted to the top of the members 4 adjacent theends thereof. The shafts 37 also carry sprockets 38 and chains 39 runover these sprockets on the shafts at each end of the respective pairsof channels 4. The upper runs of the chains 39 are engaged by sprocketwheels 40, as illustrated in Figs. 1 and 3, one of 'which sprockets 40is carried on a shaft 41 and the other of which is carried on a shaft42, which shafts project inwardly from the inside members 4 and'havesecured thereto, respec- 49. The shaft 48 drives another shaft 49through the reducing gears 50 and 51, which shaft 49 is equipped with apair of oppositely facing beveled gears 52 meshing with a larger beveledgear 53 on the shaft 31 to which reference has been made. The gears 52are mounted to turn loosely on the shaft 49 but are adapted to beconnected thereto by engagement with a sliding clutch member 53controlled through a pivoted bell crank'lever by the rod 54. Byconnecting one or the other of the gears 52 with the clutch 53 the shaft31 can be driven in either direction and will, in turn, drive shaft 27in either direction and move roller 19 in one direction or the otherbetween the sides of the frame. The shaft 48 also drives the shaft 55through the gears 56 or 57 and the shaft 55, by means of the worm gear58, drives the shaft 46 to which a worm wheel gear is secured meshingwith the worm gear 56.

The channel members 12 are extended at the front of the machine and havebolted thereto parallel flanges extendin from plates 58, which plates 58extend transversely of the members 12. A screed blade comprisingportions 59 and 60 has members 61 secured to the rear thereof carryingbolts 62 passing through longitudinal slots in the plates 58, said boltsbeing slidable in said slots and held in place by suitable nuts appliedthereto. The members 59 and 60, as clearly shown in Fig. 1, convergetoward the center of the machine where they meet in a very obtuse angleand at which portion they have secured thereto a member 63 having a bolt68 projecting therefrom through a horizontal slot in abracket 64 boltedto one of the members 9 and one of the auxiliaryframe members 65. A.shaft 49 proend to the bolt 68 projecting through brackets 64. The*blades 59 and 60 are, hence, given a lateral reciprocating motion andare i eeege rc given to the roller l9. The channel mem bers 9,therefore, have bolted to the ends thereof junction plates' 70 adaptedto have bolted thereto extension channels 71'. similar to thechannels 9.WVhen the extension-members 71 are usedthe Wheels 1- and parts car riedthereby including thechannel members 4 should bemoved outWardly,-and-forthis purpose, the I-beam 5 =is provided on its lower and outer Webwith-arack member 72 adapted to beengaged by a "pinion 73 carriedonashaft journaled in a'bearing 74 bolted to the outside o'f-the channel9, which shaft is adapted to "be turned by a hand crank 74. There will,of-cou-rse,'be a rack 72 and 'hand crankfiA for each of thel beams 5 andwhen thesaid hand cranksare turned the 'ehannel members 4, brackets 3and attache'dparts will be moved outwardly With the 'I-beam the lattersliding on the top of channels "9 and being held in engagementtherewithby the yoke membersh'ffj bolted to said channels-and extendingover thetopsof I-beams 5. 'Theenjdlportions 'ofthe fram'e of the machine"are thus moved outwardly with the Wheels 1 and the roller :8 canthusrbe givena greater la'teral travel. ItrWlll be understoodthat theextension section 71 of the channels '9 will also contain .and havesecu-red therein smaller channels 72 of :the

. same sizeas the channels -15 and adapted-to abut the ends thereof.

InI operation;the-machine Will he disposed 2 at the proper place on theiroad Where Ithe concrete layer is being laid and the machine can I bepro'gressed'by power from the lmotor '47 transmitted through thesshaft4l.and .42

Which, in turn, drives the chains SS). The chains 39- drivethe shafts3'7 which through sprockets '36 and chains35 .turn theiwheels :1. Asrthe machine almoves forwardly after 1 the layer of concrete has been 1placed. on the roadbe'd, said layer will be leveled off toapproximately" the right .shape by the plate orbar 60. This plate, asalready described,

is given a longitudinal reciprocating movem'ent transversely of the roadwhich will assist in properly surfacing orscreedingtlie concrete layerand Y Will-relieve the resistance of the particles of concrete tothe;movement of theinachine. By thus-progressing the -machine, theroller 19 is br'ought overthe newly laid: concrete. The rod 54 is-novvop erated 1 to move A the clutch block 53 successively into engagementwith the gea rs :52 and the roller 19 is moved r-across th'e road on topof the layer by shaft '27 and chains '21).

=0-Wing to-the flexedshapeofthechannel 15,

;theroller vvill not-travel in a rectili-near path but in apath-Which ishigher-atthe center so that a-desirable-erown eifectwvill he given thesurface of-the road. The roller 19 rests lightly upon the concreteand asit is recip rocated over the same, securely packs and evens the surfacethereof forcing the hard particles intothe body of the concrete andpermits the grout and cement to make :the

desired smooth surface. After one section of the road isthustreatedthe-machinewill, of course, be moved forwardly ito' the .nextsection on which the concrete has been :in the vmeantime deposited. Theaction of tl1e m-achine 'is quite rapida'nd nthe construction ofthe-road can be speedily rprogressed. Where Widerportions of the roa'dare .Lmade the 38X- tensions 71 .and :72 *Wlll be "bolted :to the (plate70 :anditherend Ffrlames andteivheels at the Wide side of. the i'roadmoved outwardly. The roller 119 canthen :be traversed. over the extraWidth of themoad, it-:.being understood,

of course, i that the; chain '20 willihave to be lengthened.

' VVhen the layer on :the roadbed,. said layer WVllll :be leveled off toapproximately 5 the [right shape by the of concrete has been placedplate or bar 60. As the arms of this plate diverge fIOIIIiiZllG centerthe asur'plus' concrete'in thelayer \vill be moved awayifrom theledges'of the pavement and towa-rd'the 'center thereof. The surplusconcrete will thus not be pushed over thecedges "of the apavementvvhere'it will have to aga-i-nfbe col- 'lected. @Wingito'the 'faict thatzth'eiplate 60 1s reciprocated;thesurplus concrete isstruclr off or leveled:by a partial shearing action instead of a straight push, thus "reducingthe power required sto :move the said plate. This reciprocating actionalso results in a better. and smoother surface on the concrete as thehard p articles? thereoftend to lseat in the concrete and nottoibeipushed outof position. Astheitruckzwheels ofzthe device are' movedand the :mac-hine .slowly .moves forward, the gearing Wlll. be thrown"intoaction to reciprocate -the roller-alt) over the surface (of theroad; :Preferably, the machineii's advanced about .-oneI-foot whileztheroller moves entirely across-the.roadinzone Theconcrete layeristhuscompressed'to af :loWer 'level'by the successive movementsof theroller thereacross. This compression is obtained withoutzvlbrationby themovement of the roller. Such vibration isiobjection-F P orar false form.

able'andtends to produce a vertical displacement of the forms.Generally, the roller will be from of an inch to inch higher at itsforward end than at its rear end and said roller will be about ten feetin length. A compression of l/QOth to 1/40th of an inch is thus obtainedby each reciprocation of the roller. The roller is held in position togive the exact crown desired by the channel members 15. The compressionof the concrete layer by the roller squeezes out the surplus moisturewhich flushes off the road and this eliminates one of the frequentcauses of surface scaling and the formation of depressions by moisturestanding on the surface. The ac tion of the roller produces a smoothsurface and also eliminates the short choppy waves often caused bymachines having a reciprocating bar for screcding'the concrete. alreadyset forth, the roller can move out on the extensions to take care ofextended widths of the roads at curves and other places so as toeliminate the use of a tem- Vhen such wider portions of the road aremade the extensions 71. and 72 will be bolted to the plate and the endframes and wheels at the wide side of the road moved outwardly. Theroller can then be traversed over the extended width as described, thelength of the chain 20, of course, being correspondingly increased.

From the above description it is seen that applicant has provided a veryefficient machine for surfacing roads. The machine is easily constructedfrom structural steel and can be quite easily and inexpensively made. Bythe use of the machine the labor and time necessary for building theconcrete road are greatly reduced and a more perfeet and better road isobtained.

It will, of course, be understood, that Various'changes may be made inthe form, details and arrangement of the device without departing fromthe scope of applieants invention, which, generally stated, consists ina device capable of carrying out the ob ects above enumerated and suchas shown and described and defined in the appended claims.

What is claimed is:

1. A machine for operating on concrete and other roads comprising aframe including spaced members extending transversely across the road, aroller for acting on the road movable longitudinally in said membersacross the .road, means for moving said roller, guide means for saidroller carried by said members for causing said roller to travel in anon-rectilinear path to form a crowned road surface, and means foradjust- .ing said last mentioned means to vary the path of said rollerto give different crown surfaces to said road.

2. A machine foroperating on roads having in combination, a frame,atruck supporting said frame and movable longitudinally of the road atthe sides thereof, said of the road at each side thereof, longitudinalframe members having brackets secured thereto in which said wheels arejournaled,

cross members-extending between said frame members, guide members.carried by said cross members, means movable on said guide members, aroller journaledin said means, means for reciprocating said roller onsaid.

frame, said cross members being adapted to have extension sectionsbolted thereto, and means for moving said longitudinal frame members,brackets and truck wheels outwardly on said extension sections.

4. A machine for operating on concrete roads having in combination, aframe comprising truck wheels spaced longitudinally of the road at eachside thereof, longitudinal frame members having brackets secured theretoin which said wheels are journaled, cross members extending between saidframe members, guide members carried by said.

cross members, means movable on said guide members, a roller journaledon said means, means for reciprocating said roller on said frame, ashaft extending between said cross members, transmission gearing drivenby said motor for reversibly driving said shaft, sprockets adjacent eachend of said sprockets at each end of each of said cross members, andchains running over the sprockets at each end of said shaft and thesprockets at the ends of the respective cross members and having theirends secured to said last mentioned means.

5. A machine for operating on concrete and similar roads having incombination a frame having spaced side members extendinglongitudinallysubstantially at each side of the road, roller supportingmeans-on said frame extending'across the road, a roller having a lengthmuch greater than its diameter and extending a considerable distancelengthwise in the road, said roller being inclined upwardly towards itsforward end, and means for simultaneously advancing said frame andreciprocating said roller across the road, whereby the surface of theroad is rolled and shaped and gradually compressed.

6. A machine for operating on concrete reciprocating said roller acrossthe road, said roller having a length several times its diameter andbeing higher at the forward side of the machine than at the rear sidethereof whereby as the machine is constantly pr0-,

gre -sed forwardly the road is compressed under the low end of saidroller.

In testimony whereof I affix my signature.

0. L. KIPP.

